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Mathematics 21 Online
Naruko885:

need help really fast!

Naruko885:

@theDeviliscoming

celticcat:

none of those choices are correct

theDeviliscoming:

^

HuskyNation:

yup

Tranquility:

Please make sure you posted the correct question and answer choices. But in general, to find the distance between two points, the formula is: \(\text{Distance } = \sqrt{ (x_2 -x_1)^2 + (y_2 - y_1)^2}\) where the two points are \( (x_1,y_1)\) and \( (x_2,y_2)\)

mathmale:

Please share whatever work you have done. Then the rest of us would be in a better position to comment helpfully on your work.

mathmale:

The Pythagorean Theorem would certainly apply here. This Theorem is based upon the same principles as is the Distance Formula. Unfortunately, Points A and B are not shown on your diagram. I'm assuming that they are labels for the two dots through which the straight line segment is drawn. Line segment AB is the hypotenuse of an isosceles right triangle of leg length 4. How would you apply the Pyth. Them. to determine the length of line segment AB, that is, of the hypotenuse?

osprey:

If it WERE pythagoras .... square root (4 squared + 16 squared) square root (16+16x16) square root [16(1+16)] 4 root 17 about 4 root 16 about 4x4 about 16 ??????????????????????????????????????????????? but the units on the graph are inconsistent with using pythag. I THINK.

Falconmaster:

i^what they said

wo1f0mon:

XD oml @Falconmaster

mathmale:

"but the units on the graph are inconsistent with using pythag." Please explain what you mean by "inconsistent" here. This problem lends itself perfectly to use of the Pythagorean Theorem. The lengths of the 2 shorter legs are 4 and 4 respectively.

mathmale:

To find the length of the hypotenuse, 1) square the length of each of the shorter sides. 2) add together the two resulting squares. 3) find the square root of the result. Please show your work.

Allison:

^

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